Phonographic announcing mechanism or the like



Aug- 13, 1935; J. L. FIFANKLlN v 2,011,216

PHONOGRAPHC ANNOUNCING MECHANISM OR THE LIKE GumMMf/f vAug. 13, 1935. 1-L, FRANKUN 2,011,216

PHONOGRAPHIG ANNOUNCING MECHANISM OR THE LIKE Filed Feb. 28, 1934 41osheets-sheet 2 Aug. 13, 1935.

Jfl.. FRANKLIN PHONOGRPHIC ANNOUNCING MECHANISM oR THE'LIKE 10Sheets-Sheet 5 Filed Feb. 28, 1954 Aug. 13, 1935. J. l.. FRANKLIN2,011,216

l PHONOGRAPHIC ANNOUNCING MECHANISM 0R THE LIKE Filed Feb. 28, 1934 l0Sheets-Sheet 4- :3mm/a Aug. 13,' 1935.- J. L. FRANKLIN 2,011,216

' PHONOGRAPHIC ANNQUNCING MECHANISM 0R THE LIKE Filed Feb. 28, 1934 l0Sheets-Sheet 5 @rr-fuma l Aug. 13, 1935. J. FRANKLIN 2,011,215

PHONOGRAPHIC ANNOUNCING MECHANISM OR THE LIKE 10 Sheets-Sheet 6 Ill vv o

Filed Feb. 28. 1954 Aug. 13, 1935. J'jl.. FRANKLIN 2,011,216

`PI'OOGYRPI'IIC ANNOUNCING MECHANISM OR THE LIKE Filed Feb. 28, 1954 10Sheets-Sheet 7 Aug. 13, 1 935. y J, FRANKLIN 2,011,216

PHONOGRPHIC ANNOUNCING MECHANISM 0R THE LIKE Filed Feb. 28, 1954 10Sheets-Sheet 8A fie jme/nm.

Aug. 13, 1935. J. l.. FRANKLIN l PHONOGRAPHIC NNOUNCING MECHANISM OR THELIKE Filed Feb. 28, 1934 1o sheets-sheet 9 Patented Aug. 13, 1935 UNITEDSTATES PATENT OFFICE PHONOGRAPHIC ANNOUNCING MECHANISM 0R THE LIKE JohnL. Franklin, Atlanta, Ga. S S i Application February Z8, 1934, SerialNo. '113,417 l i s2 claims. (c1. 17e- 6)V The invention relates to thefield of phono- Fig. 8 is a face view of the hour record shiftinggraphic devices useful as a combined time and ratchet: advertisingannouncer and for many other pur- Fig. 9 is a section on line 9 9, Fig.1, on an poses. enlarged scale;

It is an object of the invention to provide a Fig. 101s a detail sectionon line HIJ-I0 of Fig. 1 5

' ldevice that may be combined with one or a pluon an enlarged scale; yI'ality 0f. telephones t0 aumatically Speak the Fig. 11 is a face Viewof the minute record shifttime over the telephone to the nearest fullminute. ing ratchet;

It is a further object of the invention to pro- Fig 12 is a Section onen enlarged scale taken lo vide a device having no physical connectionwith on line |2. |2 of Fig, 1; i 10 the telephone Circuits which WillPerform the Fig. 13 is a side elevation of the reproducer statedfunction for long periods of time without carrier driving com with frameparte shown in attention. section; pi

It is a further object to provide a device of this Figs i4, 15, and 15arosections en correspondi5 character usmg two records utilized seriatumto ing unes of Fig i showing *standing* position. 0i. 15, reproduce oSmale Spoken sentence' certain additional switches with their actuatingIt is a further object to provide a' time ancams; Y Bouncing deviceactuated automatically in To Fig. 17 is a side elevation of a receiverlifter sponse to a telephone call, which will hold calls and Switchactuator; 20 on any one or more phones associated there-With Fig. 18 isa plan view of the structure of Fig. 17 20 which calls are completedwhile the device is in omitting the fragment of the telephone instru..operation in response to a' previous call or calls, ment; .and when Saidanoouncemont in process is com" Figs. 19, 20, and 21 are sections on thecorrepleted will immediately repeat the announcement Sponding lines ofFig 18 showing standing posiover the later cans which have been stored mtions of switches actuated by the receiver lifter; 25

the meantime Fig. 22 is a detail section on une 22-22 of Fie.

It is a further object to provide means to lock i7; v outtheannouncement initiation while the records Fig 23 is e diagram ofcircuits;

are being shifted and to lock out the record shift- Fig- 24 is a.diagram of a modified form of Cir- 3o ing means while an announcement isin process. cuits; aand 30 It is a further object to improve the qualityof Fim 25 is a diagrammatic vieW of a form of Cam reproduction of soundsby photo-electric reproto be used with the circuits of Fig 24 uuctlon' IAs shown the device comprises three principal It is a further object toprovide novel means mechanisms inter-connected electrically or meforchanging a record automatically so that difonanioaiiy oi. bothi in Suchmanner as to each 35 feront ones of a plurality of records upon a oar'control the action of the other two under some Tiel may loo in positionat' Various tlmosconditions. The mechanisms referred to areFurtherobjects of the invention will appear sound reproducing mechanism,reeerd Shifting from the following description when read.y in mechanism,and mechanism to associate tele- 40 connection with the accompanyingdrawings phones with the sound reprodneing mechanism 40 i showing anillustrative embodiment of the inven- There is also a system of c1eetriecent1-01 whereby tion, and Wherein y I the actuation of each of saidmechanisms is cor- Fig. 1 is a plan view; re1ated vFig. 2 is an endelevation; The sound reproducing and record shifting lo Fig. 3 iSdiagrammatic View illustrating the mechanisms are shown as mounted onabase 25 45 method of using aflm record; provided with an upstandingtransverse slab 26. Fig-4 iS an end ViGW from a diIeCliOn Opposite Tosupport lm sound record strips, the cylinl-G the View Of Fg- 2; ders 21,28 are shown each formed as shown for Figs. 5 and 6 are sections drawnto an enlarged cylinder 28 in Fig. 10 with a face plate 29 which 5oScale, taken 0n lnSS 5-5 and 6 5, respectively, may be secured to thecylinder by means of angles of Fig. l, showing the standing position ofcer- 30. The face plate isshown as removably setain switches; cured to aring 3| by means of screws 32, the ring Fig. '7 is a section on anenlarged scale, on line 3l being screwthreaded on shaft 54 and standing'l-Fl of Fig. 1; iush with slab 26. 55

` Record shifting mechanism To revolublysupport the cylinder, shaft 54is mounted in anti-friction bearings 34 in block 35. The shaft 54 isarranged to be driven, through a one-Way clutch to be described, by disk36 xed on vsleeve 33 freely revoluble on shaft 64, a step at a time, bymeans of gear teeth 31 on the edge of the disk in mesh with pinion 38carried upon the hub of Geneva gear 39 operated by pin 48 carried bydisk 4| once in each revolution of the disk 4|, said disk 4| being faston shaft' 42, driven by motor 43.

The motor 43 is controlled by mercury switch A to make a full rotationof shaft 42 once during each minute, the said rotation being made duringa very few seconds after which the motor is stopped by circuits andswitches to be described. To operate the mercury switch D, which ismounted onan arm 44, see Fig. 14, pivoted at 45 on a xed pivot, the armcarries a roller 46 riding on a cam 41. The cam 41 is driven at the rateof one revolution-per minute by any suitable timing operator as by thesynchronous motor 48. The switch` A. being briey closed and then againopened by th motor 43 willftart and close a-hold circuit by means to bedescribed which will'cause the motor to complete the turn of disk 4|.

'I'he record carrying cylinders 21, 28 are shown as formed with groovesto guide the placement of sound film records thereon.

Cylinder 21, shown as the hour announcing cylinder, is formed-withtwelve spiral grooves in the nature of a twelve thread screw, whilecylinder 28, shown as the minute announcing cylinder, is formed `withsixty spiral grooves in a like manner. It follows that turning orshifting of cylinder 21 one-twelfth of a revolution or of cylinder 28onesixtieth of a revolution will bring the succeeding record intoreproducing position.

Cylinder 28 is so shifted each minute as above d escribed1 l To shiftcylinder 21 once each hour, sleeve 33 carries a cam 66, the camk shownas pinned to disk 36 with'a spacer 61 interposed, see Fig. 10. Coactingwith cam 65, an arm 68, Fig. 7, is shown pivoted upon block at 69, andhaving a projection 10 bearing on the cam. The free end of arm 68 ispivoted to a bar 1|Y carrying rack Ateeth 12in 4mesh with gear teeth31'` carried by disk 36'.

The projection 10 is held against the cam by tensile spring 13 anchoredat its ends to block 35 and to. the arm 1| respectively, the strength ofthe spring being amply sufficient to easily turn cylin- 'der 21. Thearrangement is such'that arm 1| ratchet teeth.

The bases of cylinders 21 and 28 are shown as marked with properlydesignated graduations cooperating with a zero mark on slab 26 forconvenience in setting the cylinders to a correct timeannouncingposition. The mechanism is so timed that at the end of each soundreproducing action 75 tion.

ontinuously rotating cam 41, the

`Sound reproducing mechanism The cylinder 28 is driven in a soundreproducing direction by main'motor 49driving shaft 58 through a speedreducing gear, which shaft carries gear 5| in mesh with gear 52 carriedby sleeve 53, Fig. 10, freely revoluble on shaft 64.

The sleeve 63 through pin 55 drives ring.66, which ring is formed withratchet teeth 61 coacting with ratchet teeth 58, 1l, carried by disk 59fast on shaft 54.

Disk 59 is formed with an annular idangeV 68 against the interiorsurface of which clutch arms 6|, Fig. 7, pivoted upon disk 86 arepressed by springs 62 shown as acting in tension.

To yieldingly press 'the ratchet teeth into engagement, springs 62 areprovided acting in compression between lring 56 and flange 63 on sleeve63. The pin- 55 slides in an opening in flange 63. The disk 59 thusdrives the shaft 64.for record shifting through clutch arms 6| and forsound reproducing by action of ratchet teeth 61, 68 with ovenunning ofthe clutch arms 6|.

The driving in sound reproduction of cylinder 21 is the same as that ofcylinder 28 with the exception that an idle gear 64 is interposed be.tween gear 6| and gear 62' to cause the cylinders to drive in oppositedirections. for convenience of design.

'I'he spring 62' is shown as of a different design from springs 62 onlyfor purpose of illustration of thei'act that either form may be Toreproduce sound fromphoto-nlm sound rec- 88 also mounted on plate 18.The casing 16 is utilized to house any known form of audio frequencyamplier details of which are not necessary to illustrate.

To move the reproducer head, the carriage is shown, Fig. 13, as providedwith a pivotally mounted shoeV 8| traveling in and driven by cam grooves82 and 83, the groove 82 causing outward travel and groove 83 returntravel of the reproducer head with a single direction of rotation of thecylinder 8,4 in which the grooves are formed. The shoe 8|will be causedto pivot at the ends of its travell by means of the form ofinterconnection of the grooves 8 2, 83 at 85, 86 in a well knownmanner.

The cam cylinder 84 is mounted on a shaft 86' in bearings 81, suspendedfrom base 25, the shaft 86' being driven by gear 88 in mesh with gear6|, see Fig. 2.

To control the interactions of the various electrical drives and soundreproduction, the mechanism already described, in addition to mercuryswitch D, is provided with mercury switches E and F actuated by cams 89and 90, respectively, which are fixed on shaft I5, and mercury switchesA, B, C, and G, A, B, and C being all controlled by cam 9| and G beingcontrolled by cam 92, cams 9| and 92 each being fixed on a shaft 93driven by gears 94, 95, through pinion 96 fast on the end of shaft 64.The ratio of gears 94, 95 and pinion 96 is such as to cause onerevolution of shaft 93 for each complete out and back movement of thereproducer head.

iii

' neath the receiver from Wire |35, wires |4I,

Telephone connector The mechanism for associating a telephone with thesound reproducing mechanism is, for purpose of convenient location,shown in Figs. 17 and 18 as mounted on a separate base 91. Saidmechanism is shown as comprising a motor 98 driving a shaft 99 providedwith an end bearing |00, the drive of said shaft being through reductiongear not shown.

The control of motor 98, to be described, is such that shaft 99 will begiven one complete revolution when a telephone call Ais completed, in alittle more time than will be required for e, complete soundreproduction act, whereupon motor 98 will be cut off. l

Fixed on shaft 99v are switch cams |0|, |02, |03 to control mercuryswitches H, I, and J, and receiver lifting cams |06. To lift thereceiver |05 of a time announcing telephone, a plunger |06 is shown asslidably mounted in a cylinder |61 carried by a base |06, pierced byshaft 99 and secured on base 91. 'Ihe plunger |06 is shown as carrying aroller' |09 bearing on cam |04. The1 plunger |06 carries a plate ||0projecting be- |05. vWhen the shaft 99 and cam |04 are revolved in thedirection of the arrow in Fig. 22, the receiver will be lifted andsupported during a major portion of revolution of shaft 9.9 and loweredwhen the revolution is completed. A

Control served. At each telephone is a microphone |68 placed to beaffected by the ringer., Also an induction coil ||2 to be affected bythe sound reproduction of the device which will induce in the telephonecircuitsthe voice currents of the sound reproduction.

When the ringer of the telephone affects microphone the pulsatingcurrent will act through wires ||3, ||4 to cause iluctuations in coil||5, which fluctuations will be amplified by tubes H6, ||1 to cause coil||8 to be energized to attract armature H9, thus closing a circuit frompower Wire |20,wires |2|, |22, |23, |24, contact |25, wire |26, mercuryswitch J, which is normally closed, wire |21, magnet |28, wires |29,|30, to power lwire |3|. Magnet |23 will then pull down armatures toclose switches |32 and |33.

Closing of switch |32 will close acircuit from wire |20 through wires|2|, |22, |34, normally closed mercury switch G, wires |36, |36, switch|32,wire |31, motor 98, wire |30, to wire |3|,thus starting the receiverlifting motor. At the same time closing of switch |33 will close a.circuit from wire |20 through wires |2|, |22, |23, switch |33, wire |38,mercury switch J, wire |21, magnet |28, wires |29 and |30 to wire |3|,the mercury switch J having been closed by the initial motion of shaft99 caused by starting motor 98. The starting of motor 98 will also closemercury switch H, as shown in Fig. 19, which will place a hold-upcircuit on motor 93 through wires|3|, |30, motor 98, wire |39, switch H,wire |40, wires |22, |2| to wire |20, which will keep the motor 98running during one complete revolution of shaft 99, when mercury switchH will be opened to stop motor 98.

The current passing through mercury switch G, as above described, willalso close a circuit |42, solenoid switch wires |53, |54, |55, mercuryswitch I, wires |56,

|51, |58, normally closed mercury switch E, wires |59, |60, mainmotor49,'wires |6|, |62, |63, to power wire |3|, thus starting the mainmotor.

Revolution of the main motor 49 will cause revolution of cams 9| and 92which will irrimediately close normally open mercury switch A, thusproviding a hold-up circuit on motor 99,

'through wires |63, |62, |6|, motor 99, wires |69,

|59, mercury switch A, wires |64, |53, to power wire |20, thus causingmotor 49 .to produce a complete revolution of shaft`v 93 and a completeout and back movement of the sound reproducer. At the same time,normally closed switch B will be opened to prevent an operation of therecord shifting motor 43, the circuit of which will be described, inorder that the record shifting operation may not be carried out whilethe sound reproducing action is'in process.V

When the sound reproducing head reaches the end of its outward travel,mercury switch C will be shifted to extinguish lamp |55 and through wireto energize exciter lamp |66 through wire |61, |52 to battery.

The solenoid switch |63V will be held closed during the operation of thelifter motor because its circuit is controlled by mercury switch H.

The timing motor 48 is at all times energized through wires |63 and |53respectively in connection with the power/wires |29 and |35 and throughthe cam 41 will cause at the end of each minute a circuit to be closedfrom wire |20 through wires |53, |68, switch D, wire |69, motor 43,wires |62, |53 to wire |3|. at each closure of the mercury switch D thetiming motor 43 will be started into operation. Its initial turningmovement will close a circuit from power wire |20 through wires |53,|10, normally closed switch B, wires |1|, |12, mercury switch F, wire|13, motor 43, wires |62, |63, to power wire |3|. This circuit will beavailable when the sound reproducing is not in action to provide a.hold-up circuit for timer 43 to cause a complete revolution of shaft 42to shift the records, as described, `but if the sound reproducer is inaction, mercury switch B will be opened.

Therefore after the initial movement of the motor 43, due to the circuitfirst described therethrough, the motor will be stopped until themercury switch B is again closed when it will be able to complete itsaction of shifting the records.

The revolution of motor 43 will also open the normally closed switch Ewhich controls the initial action of the main motor 49, and thereforethe main motor cannot be started while the record shifting motor 43 isin action.

The variation of the selenium cells 80 produced by the sound film recordis amplied by the amplifier in the cylinder ond audio frequencyamplifier |14, the voice currents passing by way of wires |15, |16, tomodulate the voice coil ||2 thereby impressing the announcement upon thetelephone by induction. When the solenoid switch |28 is energized andcloses switch |33', a locking circuit through mer- .cury switch J, whichis normally closed, is provided by wiresl |20, |22, |23, switch |33,wire 15 passed through a sec-` Therefore |38, switch J, wire |2'|, coil|28,'wires |29, to |3I. This circuit will hold the call until motor 98starts to initiate the response when it will be broken to release switch|28 ready for a succeeding call. While coil |28 is thus energized,switch |32 will also be vclosed but since the initial motion of themotor 98 depends upon a circuit through mercury switch G, which isbroken during sound reproducing action, motor 98 will be held fromoperation but will be immediately started when the existing action ofthe mechanism terminates.

If, therefore, but one telephone is being served,

` al1 others will be held out and all calls that have been stored willbe served when ythe one in process is completed. Should there be storedcalls waiting when motor t9 completes a cycle, it will immediately beagain started by closed switch |32 in series with G unless the motor hasstarted to make a record shift which is held against completion duringaction of motor 39. If motor d3 has made a start to shift a record, itwill have opened switch E so -that motor i9 cannot be started until therecord is shifted. As between a stored call and record shiftingoperation therefore, the latter will have preference in order to notannounce an incorrect minute.

The use of reected light from aphotographic sound record is not new.However, in former structures for using this method, of which I amaware, the reflection has been wholly or mainly from the surface of therecord, the modulation being produced by relative darkening of adjacentportions of the record by the photographic process. In the structuredisclosed herein, the portions of cylinders 2l and 28 underlying thetransparent film record utilized is made highly reilective as bychromium-plating the bottoms of the grooves, if metallic cylinders areused, or by placing a thin ribbon of chromium plated metal in th'ebottoms of the grooves, if non-metallic cylinders are used.

. It is found that by this expedient a marked improvement of tonequality results above that of any other method. The best theory known tome to account for the improvement is as follows: The natural sound ofthe voice is a substantially continuous tone. When this is applied to a.photo lm in the usual manner, dark areas |80, Fig. 3, are producedseparated by transparent areas |8| When reproduced" by transmitted lightor light reected from the surface of the lm, these areas act cleanly insequence. By my method however, a. ray at one time passes in and outagain through a dark portion |80, as at |82, then in through a portionof the same dark area and out of the ad- .jacent transparent area |8| inthe manner indicated at |83, then in at a transparent area and lightalmost altogether, which does not detract from the correctness of thetheory.

In this manner the effect of the adjacent dark areas is elided,reproducing a substantially continuous tone which is very natural.

Operation 'Ihe operation should be clear from the above description. Tosummarize: The device may be` associated with a plurality of telephones,the control of the telephones being in parallel.

The ringing of a bell when the device is'idle causes the receiverlifting motor to start to lift the receiver and action of this motorcauses the sound reproduction motor to start. Once started, each of.these motors will complete a cycle and then stop.

The minute announcing record is changed each minute and the hour recordat the end of each hour, but record shifting cannot take place while themain motor` is running, nor can the main motor be started while a recordis being shifted.

The calls over all phones that are completed while other'telephones arebeing answered are stored, and all thus stored calls are answeredtogether when a cycle in process is completed.

General advertiser l'f'he mechanism described may be used for other`purposes than time announcing, as for instance for general advertising.

A diagram of circuits for controlling the mechanism of Figs. l-l6 forsuch a purpose is lillusttrated in Fig. 24. When usedyin this manner thetelephone associating mechanism and circuits are omitted.

In this form the time motor 48 is continuously running and may be gearedto shift records at intervals other than one minute and also if desired,cam 65 may be modified to at all times shift the records simultaneously,in an obvious manner.

Mercury switches D and P are both, controlled by the form of cam shownat in Fig. 25 driven by motor 48. When the high point on the cam acts,mercury switch P will .close to complete a -circuit from wire |3I,through wires |86, |81, 4motor 49, wires |88, |89, |90, I 9|, mercuryswitch P, wires |92, |93 to wire |20. Starting of motor 49 controllingswitches A and C will close A, placing a hold circuit on the' motorthrough wires |93, switch A, wires |89, |88, motor 49 and wires |81, |86to |3|, thus causing motor .'49 to produce a cycle of sound reproductionand stop by opening switch A. This action will take less time thanone-half revolution of cam |85.

The closing of switch A will complete a circuit through wires |20, |94,switch |43, wires |95, |89, switch A, wires |93 to |20, causing lightingof the exciter lamps. When the low spot on cam |85 acts, switch D willbe closed to start motor 43, which will close its hold switch F andcomplete a record shifting action.

Minor changes may be made in the physical embodiments of the inventionwithin thev scope of the appended claims without departing from f thespirit thereof.

to be reproduced, by circumferential movement of said support.

2. In a device of the class described, in combination: a revolublesupport; a. plurality of sound records extending spirally at leastpartially around said support; means to reproduce sound from saidrecords; automatically actuated means to change theprecord in positionto be reproduced, by circumferential movement of said support; and timecontrolled means to initiate action of said record changing means atpredetermined intervals. l

announcing ing; and a plurality of sound records successively moved toannouncing position by said shifting means..

4. Telephonic announcing mechanism comprising,in combination: a.telephone circuit; phonographic reproducing means to-modulate thetelephone circuit; means to associate said telephone circuit with saidmeans when a call is received; means to shift the sound records of saidphonographic means to cause desired announcement thereby; and controlmeans acting when one of the three rst named means is operating toprevent operation of either of the other two.

5. Telephonic announcing mechanism comprising, in combination:normally'stationary phonographic reproducing means; a plurality ofcalled telephones; sound record shifting means; means to associate anyof a plurality of said telephones with said phonographic means; andcontrol meansto delay association of telephones over which calls arecompleted while either of the irst two named means is acting and tocomplete said delayed association and initiate renewed movement of theVreproducing means thereafter.

6. Telephonic announcing mechanism comprising, in combination: normallystationary phonographic reproducing means; a plurality of calledtelephones;- means to associate any called telephones of said pluralitysimultaneously with said iirst named means; and means responsive tocompletion of a call on any of said telephones to cause movement of saidfirst named means.

7. Telephonic announcing mechanism comprising, in combination: aplurality of called telephones; normally stationary phonographicreproducing means common to said telephones; a

plurality of means each individual to one of said telephones toassociate the same with said reproducing means upon completion of a calithereon; means common to said telephones to delay action of the secondnamed means in response to calls on any telephones completed whiler thefirst named means is acting and to initiate such delayed response andrenewed movement of the reproducing means thereafter.

8. Phonographic announcing mechanism comprising, in combination: a pairof cylindrical record carriers; sound records spirally mounted on saidcarriers; a reproducer head common to said carriers; reproducing meansmounted on said said head individual to said carriers; means to causeout" and return traversing .movement of said head over said carriers;means to cause one ment; said last named means and said movements timedto cause a continuous announcement from the pair of records on saidcarriers; and automatically acting means to move said carriers to bringdifferent records to acting p osi- A tion.

l0. Time announcing means comprising, in combination: minute and hourrecord carriers;

sixty and twelve sound records spirally mounted' on and eirtending atleast partially around the respective carriers; the ends of said recordsterminating at an edge of each carrier at points equidistantly spacedthereabout; time controlled means to shift said carriers one-sixtieth ofa revolution each minute and one-twelfth of a lrevolution each hourrespectively; reproducing means movable over said carriers and means tomove said reproducing means to announce the hour and minute seriatum incooperation with. the sound records then in active position.

1l. 'Ihe combination of claim l0 in which the record carriers arecylinders.

12. Thecombination of claim 10 in which the record carriers arecylinders; the sound records are partially transparent photographiclms'; the reproducing means comprise sources of light andlight-sensitive cells acting by reflected light; and

with a reflecting surface underlying each sound record.

13. Phonographic apparatus comprising, in combination: a nlm support; areiiecting surface carried by said support; a partially transparentphotographic nlm sound record on said support; a source o f light; alight-sensitive cell arranged tobe aiected by light from said sourcereflected from said surface through said film; and an electric circuitconnected to have current therein modulated by said cell.

14. Phonographic announcing apparatus comprising, in combination: arevoluble record carrier; a plurality of sound records carried therebyspirally thereof and terminating at positions at an edge thereof; drivemeans to turn said carrier in a reproducing direction; drive means toturn said carrier to change the record to be reproduced; said drivemeans each permitting free revolution of said carrier in response to theother.

15. Phonographic announcing apparatus comprising, in combination: arevoluble record carrier; a. plurality of sound records carried therebyspirally thereof and terminating at equidistantly spaced positions at anedge thereof; drive means to revolve said carrier in a reproducingdirection; drive means to turn said carrier step by step in recordchanging movement to bring successive records into reproducing position;each of said drive means permitting free movement of the carrier inresponse to the other.

16. Phonographic apparatus for use with lightsensitive cell reproducingmeans comprising, in combination: a cylinder having a groove in itssurface; a reflecting surface in the bottom of said groove; a partiallytransparent photographic film sound record mounted in said groove andoverlying said surface.

1.7. Phonographic time announcing mechanism comprising, in combination:atelephone; a plurality of sound records; a shifting motor geared tochange said records; a main motor geared to drive said records; a motorgeared to associate said telephone with said records; control switchesfor the respective motors; and a governing switch in series with each ofsaid control switches, each actuated by one of the other motors toprevent conicting action of any two motors at the same time.

18. Phonographic time announcing mechanism comprising, in combination:time announcing means embodying a record carrier; a plurality of recordson said carrier; record changing means; a motor geared to drive saidannouncing means for announcement movement of the record carrier; amotor geared to drive said record changing means to causerecord'changing movement of the carrier; a time controlled switch tostart the last named motor at definite intervals; a holding switch inthe circuit of said second named motor controlled thereby to causecompletion of the record changing action; a switch in series with thelast named switch held open by operation of the rst named motor: saidrecord changing gearing including an intermittent gear so as not tointerfere with the action of the first named gearing when the recordchanginggear is partially operated.

19. Phonographic telephone answering mechanism comprising, incombination: a called telephone set; a cam to lift the receiver of saidcalled telephone; a motor to drive said cam; a switch responsive to theaction of a telephone ringer to start said motor; phonographic telephoneanswering means; a main motor to drive said last named means; a switchclosed by operation of said telephone motor to start said main motor; aswitch closed by said first named motor to cause completion of itsreceiver liiting action; a normally closed switch opened by operation ofsaid main motor in series with said last named switch to prevent actionof the first named motor while the main motor is running; and means tohold said rst named switch closed during operation of said main motor.

20. Phonographic. telephone answering mechanism comprising, incombination: a usual called telephone set; a receiver lifting cam; amotor to drive said cam; a switch closed in response to action of thetelephone ringer to start said motor; film sound record telephoneanswering means comprising a source of light; a switch closed inresponse to action of a telephone ringer; means operated by said lastnamed switch to energize the light source of the answering means; a mainmotor to drive said answering means; a switch closed by operation ofsaid rst named motor to start'said main motor; a holding switch closedby said main motor to cause completion of its answering action andsubsequently broken thereby to stop said main motor.

21. Phonographic telephone answering mechanism comprising, incombination: a usual* called telephone set; receiver lifting means; amotor to drive said means; a switch responsive to the action of theringer of the telephone to start said motor; a switch closed by initialoperation of said motor to cause the motor to complete its action andbroken by said. action to stop said motor; phonographic telephoneanswering means; a main motor to drive said means; a switch closed bythe first named motor to start said main motor; a holding switch movedbysaid Vmain motor to cause complete action thereof operating.

22. 'Iime announcing mechanism comprising,

in combination: a pair of record cylinders; minute and hour announcingsound records carried by the respective cylinders; each of saidcylinders mounted to revolve upon a shaft; a member rigid with saidshaft; means to drive said rigid member in sound reproducing directioncomprising a member journalled upon said shaft having ratchet engagementwith said rigid member; means to shift said cylinders in a direction tochange the records comprising a gear journalled upon said shaft, anoverrunning clutch between said gear and said rigid member, and means tomove said gear at definite time intervals.

23. Time announcing mechanism comprising, in combination: a pair ofparallel shafts; a pair of cylinders mounted on said shaftsrespectively; twelve sound records'for announcing the hours carried byone of said cylinders; sixty sound records carrying the minuteannouncement upon the other of said cylinders; a record shifting motor;a shaft driven thereby; a disk upon said shaft carrying a pin; anintermittent gear to be actuated by said pin once during each revolutionthereof; a gear mounted upon each of said parallel shafts; a pinioncarried by the hub of said intermittent gear in mesh with the'gear uponthe minute shaft; an overrunning clutch to drive.

said minute shaft on said gear; a cam carried rack carried by said armin mesh with the gear upon the hour shaft whereby to move said hourshaft to shift the hour records once during each full revolution of theminute record shifting gear; means to energize said motor once eachminute to cause full revolution of said motor shaft at each energizationof the motor; means to drive said cylinders in the record changingdirection independently of the described record shifting movement; and areproducing head driven by said cylinder drive actuated to coact withthe records upon said cylinders seriatum to provide a continuousannouncement of the hour and the minute.

24. 'I'he method of utilizing a photographic film record comprisingrecordings of varying opacity carried by a transparent lm which methodcomprises passing light through the records and lm; and causing thelight to be reiectedagain through the film from a reflectingsurfacebehind the lm whereby to vary the intensity of the reflected light inaccordance with the relative opacity of various portions of the record.

with variations of said reected light.

26. Phonographic apparatus for use with light sensitive cell reproducingmeans comprising, in combination: a record carrier having a reflectingsurface; and a partially transparent photographic film sound recordmounted on said carrier and overlying said surface.

27. Phonographic telephone answering apparatus comprising, incombination: a pair of record carriers; lm sound records mounted on saidcarriers; a reproducer head; a pair of exciter lamps carried by saidhead individual to said records; an exciter lamp switch; means to movesaid head out and return; telephone associating means; means actuated bysaid associating means to start said head moving means; means actuatedby said telephone associating means tol close said exciter switchwhereby to light one of said lamps during out movement of the head; andmeans actuated by moving `means to extinguish the lighted lamp and tolight the remaining lamp for the return movement of the head.

28. Phonographic announcing apparatus comprising, in combination: arigid, revoluble record carrier; a plurality of sound records carried bysaid carrier, extending spirally at least partially around the same andterminating at a'n edge thereof at equidistantly spaced points about itscircumference; means to reproduce-sound from said records; 'andautomatic means to intermittently move said carrier circumferentiallythe distance between said points for record change.

29. Phonographic announcing apparatus comprising, in combination:revolubly mounted cylindrical sound record-carrying means; a pluralityof sound records mounted on said means; a reoiprocable sound reproducinghead coacting with said records; means to cause reciprocation of saidhead comprising a revoluble drum having adoub1e spiral cam to cause outand return movement of said head; and means acting at the end of the outmovement of the head to change the record coacting with. the head uponthe return movement of the head.

30. Phonographic announcing apparatus comprising, in combination: a pairof record carriers; photographic sound records mounted thereon; drivemeans for said carriers: a `reproducing head; light sourcesl carried bysaid head for coaction with the respective records on said carriers toreproduce sound; means to cause out and return movements of said head;means to onergize one light source only during the out and the remaininglight source only during the return movement of the head; and means'tocause both sources to be energized momentarily at the end of the outmovement to avoid a break in the sound reproduction from the tworecords. i

31. Phonographic announcing apparatus comprising, in; combination: arevoluble carrier; a plurality of sound records carried thereby spiral-1y thereof and terminating at positions at an edge thereof; drive meansvto turn said carrier in' a reproducing direction; between said rstnamed means and the carrier `to turn said carrier to change the recordto be reproduced; vsaid drive means each permitting turning movement ofthe carrier yin response to the other.

32. Phonographic announcing mechanism comprising, in combination: aplurality of record carrying cylinders mounted for revolution; aplurality of sound records carried by each of said cylinders in multiplescrewthread arrangement thereon and terminating at equidistantly spacedpoints about the circumference thereof at ends of the cylinders; thelength of the records and the pitch of the. screwthread arrangementthereof diiering' between the cylinders; a reproducing head mountednfortravel parallel with the axes of the cylinders; reproducing meanscarried byy said head for said respective cylinders; means to cause outand return movement of said head at speeds corresponding to therespective pitches of said screwthread arrangements; means to revolvesaid cylinders during sound reproduction; and means to cause respectiveof said reproducing means to be active during out and return movements.

JOHN L. FRANKLIN.

drive means interposed

